PCI Express Interface

The Titanium PCIe® interface supports data rates from 2.5 Gbps to 16 Gbps with x1, x2, or x4 configuration. Refer to the PCIe Controller User Guide for a detailed description of the features.

Table 1. Supported PCIe Standards
Standard Data Rate (Gbps) per Lane Number of Lanes Specification
PCIe Gen 1 2.5 x1, x2, x4 PCI Express® Base Specification Revision 1.1
PCIe Gen 2 5 x1, x2, x4 PCI Express® Base Specification Revision 2.1
PCIe Gen 3 8 x1, x2, x4 PCI Express® Base Specification Revision 3.0
PCIe Gen 4 16 x1, x2, x4 PCI Express® Base Specification Revision 4.0

Figure 1. Transceiver Used for PCIe
Each transceiver bank is called a "quad." Titanium Ti375, Ti240, and Ti165 FPGAs have up to four quads available. Two transceiver quads support PCIe, QUAD_0 and QUAD_2.
Note: The number of transceivers is package dependent. Refer to the data sheet for the number of transceivers available in the package you are using.